Side bearing for six-wheeled passenger-car trucks.



J. F, OOONNOR. SIDE BEARING'FOR SIX WHEELED PASSENGER OAR TRUCKS.

APPLICATION FILED JAN. 2, 1914. 1,1 33,573.

. 4 ,INVENTOR. 2 Joh/vFOCon/vor 7 )4, A-z'ncmvm's Patented Mar. 30,1915.

, Improvement 1n JOHN F. OCONNOR, or omcaeo, ILLINOIS,,.ASSIGNOR TOWILLIAM H. MINER, OF

CHICAGO, ILLINOIS. V

sIDE BEARING FOR SIX-WHEELED PASSENGER-CAR. TRUCKS.

Specification of Letters Patent.

Patented Mar. so, Lara.

Application filed January 2, 1914. Serial No. 809,875.

To all whom it may concern:

Be it known that I, JOHN F. OCoNNoR, a citizen of the United States,residmg in Chicago, in the county of Cook and State of Illinois, haveinvented a new and useful Side Bearings for Six- Wheeled Passenger-CarTrucks, ofv which the following is a specification.

This invention relates to improvements in side bearings for six wheelpassenger car trucks.

An object of the invention is to provide a side bearing moreparticularly adapted for use on passenger cars employing six wheeledtrucks, which bearing operates under tension or when the adjacent partsof the body bolster and truck bolster tend to separate vertically fromeach other.

The invention furthermore consists in the improvements in the parts anddevices and in the novel combinations of the parts and devices hereinshown, described or claimed.

In the drawing forming a part of this specification, Figure 1 is abroken, detail side elevation of portions of a car body bolster andtruck bolster showing my improvements in connection therewith and Fig. 2is a vertical section taken on the line 2-2 of Fig. 1.

In said drawing 10 denotes a longitudinally extending member of a bodybolster of a type commonly employed on passenger cars and 11 denotes aside bearing bar or bridge of a common form of six wheel passenger cartruck, said bar or bridge being secured at its ends to bolsters 12 ofthe truck which are positioned relatively to the upper members of thetruck side frame 13, as shown most clearly in Fig. 2.

The improved side bearing, designated generally by the reference A,comprises a hook-shaped casting 14 secured to the body bolster member 10by means such as rivets 15, and a casting 16 secured to the under sideofthe side bearing bridge 11. The member 14 has, at its bottom, aninwardly extending horizontal flange 17 the top surface 18 of which isfiat and forms the bearing surface which cooperates and engages with theanti-friction roller 19 mounted in depending arms 20 of the casting 16,the latter having upwardly extended side flanges 21 embracing the sidebearing bridge 11 and secured thereto by rivets 22. The member 14 isbraced and strengthened by end flanges 23 on its outer side and flanges24 on its inner side.

From the preceding description it will be seen that my side bearingoperates when the adjacent parts of the body bolster and truck bolstertend to separate 'in a vertical plane, which is the reverse of theoperation of the side bearings now in general use. The side bearings nowin general use operate under compression, that is, when the adjacentparts of the bolsters are moved toward each other, whereas my improvedside bearing operates under tension. The side bearing shown in thedrawing and described herein, is so constructed that it permits freerelative angular movement between the truckand car body; the truck maybe easily separated from the car body for repairs whenever desired bydetaching the side bear ing bridges; and the side bearing comprises fewparts which may be easily and cheaply manufactured.

Several important results are obtained by the use of my improved sidebearing structure, among which may be mentioned the following. As iswell known, in rounding curves, the body has a tendency to be lifted upand separated from the trucks and with the types of side bearings nowgenerally in use, there is nothing to prevent this action. With my typeof side bearing, however, this defect is eliminated since the car bodycan not separate from the truck, the latter being, in efi'ect,inseparably connected thereto, although relative movement therebetweenis provided for. Also, on account of the side bearing connection which Ihave provided, the truck may be considered as constituting a part of thecar body proper in calculating the center of gravity of the entirestructure and hence the center of gravity is made lower than where noconnection is provided between the car body and trucks. In the case ofwrecks it is well known that the bodies and trucks become separated,since there is nothing to prevent the lifting of the body from thetruck. With my type of side bearing this defect is overcome to a greatextent and on account of the connection between the body and truck, thelatter will increase the edective resistance to telescoping of adjacentcars. Hitherto, in the case of a wreck where two cars telescope, thetrucks are simply pushed along under the car bodies when two bodiestelescope and be understood that the trucks do not afford any materialresistance to this telescoping action. Vith my connection, this resultis also partly overcome.

Although I have herein shown and described What I now consider thepreferred embodiment of my improvement, yet it will various changes andmodifications may be made without departing from the spirit of theinvention, and all such changes and modifications are contemplated ascome within the scope of the claims appended hereto.

I claim 1. In a device of the character described, the combination witha member secured to the body-bolster of a car, of a truck-bolster havinga side bearing bridge, said member having a substantially hook-shapedlower end extending beneath the under side of said bearing bridge, andan anti-friction roller carried by one of said elements and interposedbetween said member and the inner side' of the bearing bridge, wherebywhen the car body tends to move away from the truck in a vertical plane,the same is limited by the engagement between said member and saidbearing bridge.

2. In a device of the character described, the combination with a membersecured to the body-bolster of a car, of a truck having a side bearingbridge, a bracket mounted on the under side ,of the bearing bridge, saidbracket having an anti-friction roller mounted therein, and said membersecured to the body-bolster having an inwardly extending flange at thelower end thereof, located beneath said anti-friction. roller andadapted to engage the roller when the body-bolster moves away from thetruck-bolster.

3. A side bearing for passenger cars having six-wheeled trucks andcomprising a member secured to the body-bolster, said member having aninturned horizontal flange at the lower end thereof, a bracket securedto the side bearing bridge'of the truck, said bracket having ananti-friction roller mounted therein, said roller coming into playbetween said member and the side bearing bridge when the body-bolsterand the wheel truck tend to separate in a vertical plane.

JOHN F. OCONNOR. Witnesses:

WILLIAM A. GEIGER, JOSEPH HARRIS.

